Home / 3,186.10-4,780.17-1,336.72

Finding the Fourth Proportional to 3,186.10, 4,780.17 and 1,336.72

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Solution

The fourth proportional to 3,186.10, 4,780.17 and 1,336.72 is: 2,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.10 : 4,780.17 = 1,336.72 : x
  2. Step 2: Convert to fraction form
    3,186.10/4,780.17 = 1,336.72/x
  3. Step 3: Cross multiply
    3,186.10x = 4,780.17 × 1,336.72
  4. Step 4: Simplify right side
    3,186.10x = 6,389,748.84
  5. Step 5: Solve for x
    x = 6,389,748.84/3,186.10
  6. Step 6: Final answer
    x = 2,005.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.